Toothbrush



FIG. 1 is a perspective view of a toothbrush embodying the new design;

FIG. 2 is a right side view, the left side view being a mirror imagethereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The portions shown in phantom lines in FIGS. 1-4 are shown forenvironmental purposes only and form no part of the claimed design.

CLAIM The ornamental design for a toothbrush, as shown and described.